From this side of history, Jeremiah has great resolve. Yet the shifting political allegiances he interprets are not so different from our own uncertainties. Only in retrospect are Jeremiah's claims clear.
It seems a little backward on the Sunday after Pentecost to receive instructions that have already been successfully carried out. Peter and the disciples blew them away last week, preaching up a storm of fire and spirit like a host of Rosetta Stone experts. But today we go back to the place where Jesus told them what to do: Go and make disciples.